Cleaning device



2, 9 L. o. CORKRAN 1,707,346

' CLEANING DEVICE Filed Oct. 27, 192 2 Sheets-Sheet 1 INVENTOR Z .a Car/Tan. Y

ATTORNEY April 2, 1929. 1.. o. CORKRAN 1,707,346

CLEANING DEVI CE Filed Oct. 27. 192 2 Sheets-Sheet 3 INVENTOR Z.d Car-Evan.

BY W7 0 ATTORNEY Patented Apr. 2, 1929.

UNITED STATES PATENT 0F 1 1,707,846 JCE- j.

CLEANING DEVICE.

Application filed October 27,

This invention relates to a cleaning device for screened openings.

An object of the invention is the provision of a device through which liquids are adapted to be'passed and screened to eliminate foreign matter, means being employed to maintain the screened opening clean in order to maintain a constant flow of the liquid.

Another object of the invention is the provision of a plurality of tanks, one within the other, the smaller tank forming an auxiliary tank in which the liquid is filled by gravity and provided with a screened opening across which a brush adapted to be oscillated for maintaining the screen clean.

v A further object of the invention is the provision of an auxiliary tank suspended in i a closed main tank and of such dimensions as to provide a space around said auxiliary tank in the main tank, the auxiliary tank being provided with a screen opening through which liquids are adapted to'pass and over tank being open at its upper end into which liquids are discharged by gravity.

This invention will be best understood from a consideration of the following detailed description in connection with the accompanying drawings; nevertheless'it is to be understood that the invention is not confined to the disclosure being susceptible'of such changes and modifications as shall .define no material departure from the salient features of the invention as expressed in the appended claims.

In the drawings Figure 1 is a longitudinal section of the device constructed in accordance with the principles of my invention,

Figure 2 is a transverse vertical section of the auxiliary tank taken along the line 22 or Fig. 1,

Figure 3 is a transverse vertical section taken along line 33 of Fig. 1, 3

Figure 4 is a view in perspective of the specially constructed lever which moves a brush across the screened opening,

Figure 5 is a view in perspective of a supporting bracket for the rocking lever.

Referring more particularly to the draw ings 10 designates generally a main tank having a closed top, as shown at 11, with an opening 12 to receive an auxiliary tank 13. The main tank is provided with a discharge open- 1927. Serial No. 229,108;

ing 14 from which'the liquids are withdrawn either by gravity or by means of a pump.

The auxiliary tank 13 is of lesser dimensions than the main tank so that the side walls and bottom of'the auxiliary tank will be spaced sufliciently from the corresponding side walls and bottom of the main tank to provide a chamber 15 for the reception of liquids which are discharged through an opening 16 in the auxiliary tank. This opening is formed at one wall 17 of theauxiliary tank and a frame 18 is secured to the-- wall at the opening and is provided with reinforcing bars 19 upon which is mounted a plurality of screens 20. The screens are rigidly secured'to the frame 18 inorder to maintain them in place. v V

A U-shaped bracket 21has flanged ends 22 secured to the inner face of the end walls 17 and is provided with a. central opening 23 in which is mounted an axle 24. The flanged ends 22 extend upon opposite sides of the frame 18. which a brush is adapted to beoscillated for g maintaining the screen clean, the auxiliary A lever 25 is pivoted intermediate'its ends on the axle 24 and has laterally projecting arms 26 which are dis osed in alinement wit each other and with t e passage 27 receiving the axle 24, and on which the lever is rotatably mounted.

The upper end of the lever is pivotally connectcd at 30 with a link 31 which has an ec centric connection as shown at 32, with a disk 33. This disk is adapted to be revolved in any approved manner which'causes reciprocation of the link 31 and rocking of the lever 25.

mouu ted pins 38. These pins extend lateral- 1 ly and project through passages 39 in the arms 34 andare slidably mounted in the passages. Coil springs 40 enbrace the pins 38 and engage at one end the lever 25 and the A brush is maintained in engagement with arms 26, while at their other ends they are 7 in engagement with the arms 34 and tend to force the back or arms outwardly to maintain the bristles 41 in engagement with the outer screen 20.

The outer wall of the auxiliary tank 13 is I 'and since the lever is connected to I 34L through the pins 37, the brush is similarly provided with a peripheral flange 45 which auxiliary tank is supported in suspended and spaced relation Within the main tank.

The operation of mydevice is as follows: I 'The device is adaptedto, be employed for auxiliary tank suspended inthe'main tank screening or for eliminating foreign matter from liquids Which are poured into the auxiliary tank 13 and the brushes are adapted to ,maintain the screen clean.

When the Wallor disk33 is revolved to reciprocate the link 31, rocking the lever'25,

the arms rocked moving the bristles 41 which are at jtached to the arms 34 over the face of the screen 20 thereby maintaining the screen at valltimes free offoreign matter in order that the liquid may flow from the tank 13 into the chamber 15 of the main tank 10. The liquid is then withdrawnby grawty or a pump through the chamber 15, through opening 14 .and is delivered either directly through a nozzle for spraying trees or may be placed in storage for further use. The springs l0 at all times maintain the bristles all in snug contact with the screen 20 so that positive brushing action will be provided at all times during the operation of the lever 25.

I claim h 1. A device of the character described com prising a main tank havingan opening in the top thereof, an auxiliary tank having the upper end open and fitted into the opening in the main tank, the side Walls and bottom of the auxiliary tank being spaced from the corresponding side Walls and bottom of the ,main tank to provide a chamber in the main tank, means for supporting the auxiliary tank suspended in the main tank, the auxiliaryftankhaving a discharge opening, a screen covering the opening in one side Wall thereof, a brush, a lever for moving the brush cover the screen, and means connecting the brush to the lever, said connecting means permitting lateral movement of the brush relative to the lever.

2. A device of the character described comprising a main tank having an opening in and in spaced relation with said tank, the auxiliary tank having a discharge opening, a screen covering said opening, a lever pivotally mounted intermediate the ends thereof, arms projecting laterally from the lever and in line With the pivotal connection of the lever, a brush having arms radiating from a common center, slidahly mounted on the lever, and on the laterally disposed arms of the lever, means for maintaining the brush in contact with the screen, and means for rocking the lever and for rocking the arms of the brush whereby said brush is oscillated over the surface of the screen. 7

8. A device of the character described comprising a main tank having. an opening in the top thereof, an auxiliary tank having the up- )er end 0 )en and fitted into the ooenin in i Y, L D

"the main tank, means for supporting the auxtel-mediate the ends thereof and having laterally projecting arms in line With a pair of arms of the1brush,tl1e other arms of the brush being in line with the lever, means for slidably mounting the arms of the brush on the lever and also on the laterally projecting arms of said lever, and means for rocking the lever for causing the brush to be oscillated back and forth over the screen.

Signed at Hurloch in the county of Derchester and State of Maryland this 15th day of October A. D. 1927. V p LEVIN o. CORKRA N. 

